Pilot clean up programme at Lake Rotorua

Rotorua

Over the last century, human activity has contributed to significant rises in the nutrient levels of natural waterways. At the Rotorua lakes in the Bay of Plenty, New Zealand, Aquaflow is engaging in a pilot programme to test water remediation technologies and remove algal blooms from the lake.

The nutrient supply observed entering the lakes is estimated to have taken 40 years to reach the lake, which would indicate that we can expect to see significant increases in nutrient levels in the future. The relatively low algae concentrations, which are currently 10 to 1000 times less than in municipal waste water, will demonstrate the most demanding real world performance of our harvest system in both efficiency and operating cost. This project will also serve to quantify the environmental benefit and show there are no unexpected detrimental effects caused by the process.

EBOP Executive Summary and Results

TECHNOLOGY


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